1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8400bdf3bc517bb846fb285c19cbdd900df7e276f5e3b5915b854fad1dc986e8. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d19ec97-1eae-4ada-851f-30d03935d586.json and https://artists.proofprofile.net/proofs/artist/8d19ec97-1eae-4ada-851f-30d03935d586.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915dd18ca157fab4bf9a8ab68627a6ca1ae8ece9713619128dfed56d4886e233. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f520011b2330fe8f04040a3a18178d937e25a80f986f782ab8a93ddda5fab7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9701e75179128313cbd15f02be64bd19bb4064020fddbeb3f02c481e69dbea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebebab31350fd462d3738db62df2aa52e37ae4aeded19bf3bffdeb3c482dcabf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58acccb310021715f5c5456cbc650ab2055d08b00cb67f5621cf93ee64ce089a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9b828763aea56085b58f5398f3086f3cd79b98a99fb21336a1841c0c957454. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK41075916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3567c224f62f3e4a1ba65eb4b743c33830283db72f366b136d502b939d5d616c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB8KE2050074.
White Roses (feat. Maddy) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2f4f773327fd44ceffa0551495ac4a8f00a1fa8ab2224ae5757558f7161049. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB8KE2050075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f4f801ae9bdb0c950571a94738cd84ad57693de0f42f82c3773ab08e56ed6b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF52000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45be023d89f9a07ec6d2dbb73f00c5529fc1be378497552480a851d4de9bf00. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB2LD1900534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19047b4056008cb2acf5df4b25d2db991a1d0ba0c8da0e610bb78b6e2a2bdcff. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd3cee0d82fe4bd9428ddf7fbd16022f3eba11d529817e9cba52d6bc375bb62. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4382a8ab28e38b03616a2df4c2923764436b3c924e52c82d45b371fd3bd9b8c1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d12d65b2712eabcd708db7286d7397ff11f14e9ad908c9a65131cd59781104. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d52964545d280439b456da7c823c490c072d40387cc612d6094b3f3e9f4b134. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebebab31350fd462d3738db62df2aa52e37ae4aeded19bf3bffdeb3c482dcabf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384b1e63a2575bc8103f759eb47e423568b9d6e3ae7f29c7117d388717445b62. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBRF51500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c286f246d80319d8ac8d6e5ecb95596dfd293419e24587d4284530afd0fa010. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLHX1340002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed437e35d0a7ec56c734bb88ec71983caf354c0df8916422759b70ff6c46363. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1204060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aaab33797baf37eda4629f4d7893aa846f344eabe25388b4a07068b7d308ed6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU1281791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679d9e8c359fcdc07169b8551162125a95982d97b0899c7325fbe300236344b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLCK41047142.